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Norway ups whale kill numbers and removes whale welfare protections

The whaling season in Norway has begun on the back of disturbing announcements from the...
Image taken from an unmanned hexacopter at >100ft during a research collaboration between NOAA/SWFSC, SR3 and the Coastal Ocean Research Institute. Research authorized by NMFS permit #19091.

Southern Resident orca petition to list them under Oregon Endangered Species Act advanced

The Oregon Fish and Wildlife Commission voted today to advance a petition seeking to protect...
Hysazu Photography

WDC and Conservation Partners Continue to Seek Oregon Endangered Species Protection for Southern Resident Orcas

On Friday, April 21st, the Oregon Fish and Wildlife Commission will determine whether the petition...
WDC Seal Rescue April 2023 (1)

WDC conducts milestone seal rescue in Marshfield

For Immediate Release, April 10, 2023 MARSHFIELD, MA - A young grey seal was found...

Revealed – how whales gulp massive loads of seawater without pain

Researchers from the University of British Columbia, Canada, who have been studying the feeding habits of whales that lunge feed, have uncovered the reason why these huge creatures are able to scoop up such massive volumes of water in their mouths without feeling any pain.

This particular group, baleen whales, are known for their pleated throats. The pleats allow the whales to take in huge gulps of water, which they then push out of their mouths with their tongues, past their bristle-like baleen. The water gets forced out, while food (prey) is trapped and swallowed. This is known a lunge feeding.

But, feeding this way isn’t easy. When baleen whales (like the Blue whale) gulp up a mouthful of water to filter for food, a pouch of skin under their chins has to stretch to its limits (expanding by over 150%) in order to hold the heavy load. This stretch should hurt, but new research finds that whale nerves are specially adapted to prevent these giant creatures from feeling pain.

The whales’ nerves are coiled in a tight spiral that allows them to work when stretched. Normally, nerve fibres should not be able to coil so tightly but it appears that these whales have a second level of waviness that allows the nerve fibres to twist around the curves without stretching.